Fixed.cpp

[詳解]

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   Fixed.cpp                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kamitsui <kamitsui@student.42tokyo.jp>     +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/04/26 22:12:49 by kamitsui          #+#    #+#             */
/*   Updated: 2025/05/06 23:23:10 by kamitsui         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "Fixed.hpp"
#include <cmath>
#include <iostream>
 
const int Fixed::fractionalBits; // Definition of the static member
 
Fixed::Fixed() : fixedPointValue(0) { std::cout << "Default constructor called" << std::endl; }
 
Fixed::Fixed(const int raw) : fixedPointValue(raw << fractionalBits) {
    std::cout << "Int constructor called" << std::endl;
}
Fixed::Fixed(const float raw) : fixedPointValue(static_cast<int>(roundf(raw * (1 << fractionalBits)))) {
    std::cout << "Float constructor called" << std::endl;
}
Fixed::Fixed(const Fixed &other) : fixedPointValue(other.fixedPointValue) {
    std::cout << "Copy constructor called" << std::endl;
}
 
Fixed &Fixed::operator=(const Fixed &other) {
    std::cout << "Copy assignment operator called" << std::endl;
    if (this != &other) {
        this->fixedPointValue = other.fixedPointValue;
    }
    return *this;
}
Fixed::~Fixed() { std::cout << "Destructor called" << std::endl; }
 
int Fixed::getRawBits(void) const {
    std::cout << "getRawBits member function called" << std::endl;
    return this->fixedPointValue;
}
 
void Fixed::setRawBits(int const raw) { this->fixedPointValue = raw; }
 
float Fixed::toFloat(void) const { return static_cast<float>(this->fixedPointValue) / (1 << fractionalBits); }
int Fixed::toInt(void) const { return this->fixedPointValue >> fractionalBits; }
std::ostream &operator<<(std::ostream &o, const Fixed &fixed) {
    o << fixed.toFloat();
    return o;
}